Waste discharging method, waste discharging device and die cutting machine capable of saving adhesive tape

Abstract

A waste discharging method, waste discharging device and die cutting machine capable of saving adhesive tape for a die cutting machine. Among them, the waste discharging device includes a waste discharging tape unwinding assembly, a waste discharging tape lower pressing roller and a waste discharging tape winding assembly. A waste discharging tape fixed-length one-way conveying assembly is arranged between the waste discharging tape lower pressing roller and the waste discharging tape winding assembly. The waste discharging tape fixed-length one-way conveying assembly conveys the waste discharging tape to the waste discharging tape winding assembly in a one-way manner according to a preset length that is less than the width of the protrusion of the waste discharging tape lower pressing roller, and the waste discharging tape winding assembly winds up the waste discharging tape. Since in the present invention, the advancing mode of the waste discharging tape in the prior art is changed from the traditional mode of running synchronously with the material to be die cut to a preset step mode, and the step distance is less than or equal to the width of the protrusion of the waste discharging tape lower pressing roller, the parts to be discharged can be arranged one by one or in an overlapping manner, which can greatly improve the utilization rate of the waste discharging tape and save the cost of the waste discharging tape.

Description

Technical Field

[0001] The present invention relates to the technical field of die-cutting, in particular to a waste discharging method, a waste discharging device and a die-cutting machine for a die-cutting machine that can save adhesive tape. Background Art

[0002] For many products such as self-adhesive labels, mobile phone films, etc., according to the needs of the products to be pasted, several holes need to be pre-die-cut to correspond to the corresponding positions on the products to be pasted that cannot be covered. In the prior art, for the mechanical waste discharging of the waste materials at the semi-perforated positions, the method of pasting and collecting is mainly used to discharge the hole waste materials. For example, an automatic waste discharging structure of a die-cutting machine disclosed in Chinese Patent Document CN210500514U is such a machine. It includes a workbench, a die-cutting machine is arranged on the workbench, and a waste discharging mechanism is arranged on the discharging side of the die-cutting machine; the waste discharging mechanism includes a tape feeding component, a tape collecting component and a tape passing through between the tape feeding component and the tape collecting component, and a pressing element arranged at a corresponding position on the workbench. The pressing element presses down the tape, so that the adhesive side of the tape is in contact with the label paper conveyed on the workbench, and the waste materials after die-cutting are stuck and collected.

[0003] Using the method of pasting and collecting to discharge the hole waste materials has the advantages of fast speed, high efficiency and no damage to the perforation edge. However, this method requires the waste discharging tape to run synchronously with the material to be die-cut. In reality, the semi-perforations in the material to be die-cut only account for a part of the material to be die-cut, but the waste discharging tape of the same length as the material to be die-cut is also used. In this way, only a part of the waste discharging tape is used, while most of it is not used, resulting in a large waste of the waste discharging tape and increasing the waste material cost of the manufacturer. How to improve the utilization rate of the waste discharging tape is a technical problem that needs to be solved urgently by those skilled in the same industry. Summary of the Invention

[0004] Aiming at the problems existing in the prior art and overcoming the defects of the current prior art, the present invention provides a waste discharging method, a waste discharging device and a die-cutting machine for a die-cutting machine that can save adhesive tape.

[0005] The technical solution of the present invention is: to provide a waste discharging method for a die-cutting machine that can save adhesive tape, and the waste discharging tape pressing roller of the waste discharging device rotates in the opposite direction to the material to be die-cut supporting roller, including the following steps:

[0006] S1. When the part to be discharged of the material to be die-cut reaches between the waste discharging tape pressing roller and the material to be die-cut supporting roller, the protrusion of the waste discharging tape pressing roller presses down the adhesive side of the waste discharging tape to stick the part to be discharged;

[0007] S2, under the joint action of the protrusion of the waste tape lower pressure roller and the roller of the material to be die-cut, the waste tape with the waste tape portion to be discharged is conveyed to the waste tape fixed-length one-way conveying assembly located between the waste tape lower pressure roller and the waste tape receiving assembly;

[0008] S3, the waste tape fixed-length unidirectional conveying component unidirectionally conveys the waste tape of a preset length less than the waste tape conveyed in step S2 to the waste tape receiving component for winding;

[0009] S4, the waste tape unloading component of the waste discharge device keeps the waste tape in a retracted state. When the waste tape is separated from the protrusion of the waste tape lower pressure roller, if there is excess waste tape between the waste tape lower pressure roller and the waste tape fixed-length one-way conveying component, the waste tape unloading component retracts the excess waste tape;

[0010] S5. Repeat steps S1 to S4 until the material to be die-cut is rolled up.

[0011] As an improvement to the present invention, the reverse power of the waste discharge tape unloading assembly is provided by the first servo motor and the waste discharge tape lower pressure roller through the first synchronous belt assembly, the power of the waste discharge tape fixed-length unidirectional conveying assembly is provided by the waste discharge tape lower pressure roller through the second synchronous belt, and the power of the waste discharge tape receiving assembly is provided by the waste discharge tape fixed-length unidirectional conveying assembly through the third synchronous belt.

[0012] As an improvement to the present invention, the reverse power of the waste tape unloading assembly is provided by a second servo motor, the power of the waste tape fixed-length unidirectional conveying assembly is provided by a third servo motor, the power of the waste tape receiving assembly is provided by a fourth servo motor, and the first servo motor, the second servo motor, the third servo motor and the fourth servo motor are controlled by a control circuit.

[0013] As an improvement to the present invention, an elastic tensioning roller for tensioning the waste discharge tape is provided between the waste discharge tape lower pressure roller and the waste discharge tape fixed-length one-way conveying assembly.

[0014] As an improvement to the present invention, a support roller for adjusting the wrap angle of the waste discharge tape is provided between the waste discharge tape unloading assembly and the waste discharge tape lower pressure roller.

[0015] The present invention also provides a waste discharge device of a die-cutting machine, comprising a waste discharge tape unloading component, a waste discharge tape lower pressure roller and a waste discharge tape receiving component, wherein a waste discharge tape fixed-length unidirectional conveying component is provided between the waste discharge tape lower pressure roller and the waste discharge tape receiving component, and the waste discharge tape fixed-length unidirectional conveying component unidirectionally conveys the waste discharge tape according to a preset width smaller than the protrusion of the waste discharge tape lower pressure roller to the waste discharge tape receiving component, and the waste discharge tape receiving component reels the waste discharge tape.

[0016] As an improvement to the present invention, the waste discharge tape feeding assembly is a constant-tension return feeding assembly. When the waste discharge tape disengages from the protrusion of the waste discharge tape lower pressing roller, if there is excess waste discharge tape between the waste discharge tape lower pressing roller and the waste discharge tape fixed-length unidirectional conveying assembly, the waste discharge tape feeding assembly will retract the excess waste discharge tape.

[0017] As an improvement to the present invention, the waste discharge tape fixed-length unidirectional conveying assembly includes a fixed-length driving roller and a fixed-length supporting roller. The roller surfaces of the fixed-length driving roller and the fixed-length supporting roller are in close contact. At one end of the fixed-length driving roller, there is a driving roller gear, and at the same end of the fixed-length supporting roller, there is a driven roller gear. The driving roller gear meshes with the driven roller gear.

[0018] As an improvement to the present invention, the waste discharge tape collecting assembly is a constant-tension pulling collecting assembly.

[0019] The present invention also provides a die-cutting machine, which includes the waste discharging device of the above-mentioned die-cutting machine.

[0020] Compared with the prior art, in the present invention, since the advancing mode of the waste discharge tape in the prior art is changed from the traditional mode of running synchronously with the material to be die-cut to a step-by-step mode set in advance for the waste discharge tape, and the step distance is less than or equal to the width of the protrusion of the waste discharge tape lower pressing roller, the parts to be discharged can be arranged one by one or in an overlapping manner, which can greatly improve the utilization rate of the waste discharge tape and save the cost of the waste discharge tape. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic block structure diagram of the method of the present invention.

[0022] Figure 2 is a schematic side structure diagram of the first embodiment of the device of the present invention.

[0023] Figure 3 is Figure 2 a schematic top structure diagram of

[0024] Figure 4 is Figure 2 a schematic diagram showing the waste discharge tape disengaging from the material to be die-cut roller in the shown embodiment.

[0025] Figure 5 is a schematic side structure diagram of the second embodiment of the device of the present invention.

[0026] Figure 6 is Figure 5 a schematic top structure diagram of

[0027] Figure 7 is a schematic diagram of the use effect of the present invention. EMBODIMENTS

[0028] Please refer to Figure 1 , Figure 1 A waste discharging method for a die-cutting machine that can save adhesive tape. The lower pressing roller 12 of the waste discharging tape of the waste discharging device (the labels are as shown in the following device part, the same below) rotates in the opposite direction to the material roller 8 to be die-cut under the drive of the first servo motor 9. Specifically, the opposite rotation is achieved by providing a lower pressing roller gear 122 at one end of the lower pressing roller 12 of the waste discharging tape and a roller gear 81 at the same end of the material roller 8 to be die-cut, and the lower pressing roller gear 122 and the roller gear 81 are engaged. The method includes the following steps:

[0029] S1. When the waste part 51 on the material 5 to be die-cut reaches between the lower pressing roller 12 of the waste discharging tape and the material roller 8 to be die-cut, the protrusion 121 of the lower pressing roller 12 of the waste discharging tape descends to press down the adhesive side of the waste discharging tape 18 to stick the waste part 51;

[0030] S2. Under the combined action of the protrusion 121 of the lower pressing roller 12 of the waste discharging tape and the material roller 8 to be die-cut, the waste discharging tape 18 with the waste part 51 stuck is conveyed to the waste discharging tape fixed-length one-way conveying component 19 located between the lower pressing roller 12 of the waste discharging tape and the waste discharging tape collecting component 22, and the length of the conveyed waste discharging tape 18 is the width of the protrusion 121. The waste discharging tape fixed-length one-way conveying component 19 ensures that the waste discharging tape 18 is only conveyed to the waste discharging tape collecting component 22 and can only be conveyed a preset length. For example, if the width of the protrusion 121 is 7 mm, under the pressing and traction force of the protrusion 121 and the material roller 8 to be die-cut, the maximum length of the waste discharging tape 18 conveyed to the waste discharging tape fixed-length one-way conveying component 19 is 7 mm. When the length conveyed by the waste discharging tape fixed-length one-way conveying component 19 to the waste discharging tape collecting component 22 is equal to 7 mm, the 7-mm long waste discharging tape 18 is all wound up by the waste discharging tape collecting component 22; when the length conveyed by the waste discharging tape fixed-length one-way conveying component 19 to the waste discharging tape collecting component 22 is greater than 0 and less than 7 mm, the waste discharging tape collecting component 22 only winds up the waste discharging tape 18 conveyed by the waste discharging tape fixed-length one-way conveying component 19; the remaining waste discharging tape 18 is stored between the lower pressing roller 12 of the waste discharging tape and the waste discharging tape fixed-length one-way conveying component 19 and is tensioned by the elastic tensioning roller 17. Of course, the width of the protrusion 121 being 7 mm is only an example and cannot be used to limit the present invention; the width of the protrusion 121 can be selected between 1 mm and 30 mm;

[0031] S3, the waste tape fixed-length one-way conveying assembly 19 conveys the waste tape 18 to the waste tape receiving assembly 22 according to a preset length that is less than or equal to the length of the waste tape 18 conveyed in step S2, and the waste tape receiving assembly 22 reels it; if the length of the waste tape 18 conveyed by the waste tape fixed-length one-way conveying assembly 19 is less than the length conveyed by the protrusion 121 and the roller 8 of the material to be die-cut, the speed ratio of the waste tape lower pressure roller 12 and the waste tape fixed-length one-way conveying assembly 19 should be adjusted to slow down the speed of the waste tape fixed-length one-way conveying assembly 19;

[0032] S4, the waste tape discharge assembly 14 of the waste discharge device makes the waste tape 18 always in a retracted state, and its retracted force is smaller than the pressing traction force between the protrusion 121 and the roller 8 of the material to be die-cut. In this embodiment, the waste tape discharge assembly 14 can use a magnetic powder tension motor with a speed-controlled hand-roller assembly, or a sliding motor with a speed-controlled tension-controlled hand-roller assembly. When the force of the waste tape 18 is too large, the magnetic powder tension motor can automatically slip according to the preset force value, so as not to break the waste tape 18; when the waste tape 18 is separated from the protrusion 121 of the waste tape lower pressure roller 12 (see Figure 4 ), if there is excess waste tape 18 between the waste tape lower pressure roller 12 and the waste tape fixed-length one-way conveying assembly 19, the waste tape unloading assembly 14 retracts the excess waste tape 18, thereby forming an overlapping arrangement of the waste to be discharged portion 51;

[0033] S5. Repeat steps S1 to S4 until the material to be die-cut is rolled up.

[0034] Preferably, when only one motor is used and the motor drives the waste discharge device, the reverse power of the waste discharge tape unloading assembly 14 is provided by the first servo motor 9 and the waste discharge tape lower pressure roller 12 through the first synchronous belt 15 assembly, the power of the waste discharge tape fixed-length unidirectional conveying assembly 19 is provided by the waste discharge tape lower pressure roller 12 through the second synchronous belt 16, and the power of the waste discharge tape receiving assembly 22 is provided by the waste discharge tape fixed-length unidirectional conveying assembly 19 through the third synchronous belt 21.

[0035] Preferably, when synchronous belt transmission is not used, a full motor can be used to provide power, and its structure can be that the reverse power of the waste discharge tape discharge component 14 is provided by the second servo motor 141, the power of the waste discharge tape fixed-length unidirectional conveying component 19 is provided by the third servo motor 192, and the power of the waste discharge tape receiving component 22 is provided by the fourth servo motor 221. The first servo motor 9, the second servo motor 141, the third servo motor 192 and the fourth servo motor 221 are controlled by a control circuit (not shown).

[0036] Preferably, an elastic tensioning roller 17 for tensioning the waste discharge tape 18 is provided between the waste discharge tape lower pressure roller 12 and the waste discharge tape fixed-length unidirectional conveying assembly 19 .

[0037] Preferably, a support roller 13 for adjusting the wrap angle of the waste discharge tape 18 is provided between the waste discharge tape unloading assembly 14 and the waste discharge tape lower pressure roller 12, and the wrap angle of the waste discharge tape 18 can be selected between greater than 180 degrees and less than 150 degrees.

[0038] See also Figures 2 - 4 , Figures 2 - 4 Disclosed is a first embodiment of a waste discharge device of a die-cutting machine, comprising a waste discharge tape unloading component 14, a waste discharge tape lower pressing roller 12 and a waste discharge tape receiving component 22, wherein a waste discharge tape fixed-length unidirectional conveying component 19 is provided between the waste discharge tape lower pressing roller 12 and the waste discharge tape receiving component 22, and the waste discharge tape fixed-length unidirectional conveying component 19 unidirectionally conveys waste tape of a preset width less than or equal to a protrusion 121 (three equally divided protrusions 121 in this embodiment, and the protrusions 121 can also be selected between 2 and 6) of the waste discharge tape lower pressing roller 12 to the waste discharge tape receiving component 22, and the waste discharge tape receiving component 22 reels the waste discharge tape 18. For example, if the width of the protrusion 121 is 7 mm, under the action of the pressing traction force between the protrusion 121 and the roller 8 of the material to be die-cut, the longest length of the waste tape 18 conveyed to the waste tape fixed-length one-way conveying component 19 is 7 mm. When the length conveyed by the waste tape fixed-length one-way conveying component 19 to the waste tape receiving component 22 is equal to 7 mm, the 7 mm long waste tape 18 is completely reeled in by the waste tape receiving component 22; when the waste tape fixed-length one-way conveying component 19 conveys the waste tape to the waste tape receiving component 22, the 7 mm long waste tape 18 is completely reeled in by the waste tape receiving component 22. When the conveying length 22 is greater than 0 and less than 7mm, the waste tape receiving component 22 only reels the waste tape 18 conveyed by the waste tape fixed-length unidirectional conveying component 19; the remaining waste tape 18 is stored between the waste tape lower pressure roller 12 and the waste tape fixed-length unidirectional conveying component 19, and is tensioned by the elastic tensioning roller 17; of course, the width of the above-mentioned protrusion 121 of 7mm is only an example and cannot be used to limit the present invention; the width of the protrusion 121 can be selected between 1mm-30mm.

[0039] Preferably, the waste tape unloading component 14 is a constant tension return unloading component. When the waste tape is separated from the protrusion 121 (see Figure 4 ), if there is excess waste tape 18 between the waste tape lower pressure roller 12 and the waste tape fixed-length one-way conveying assembly 19, the waste tape unloading assembly 14 will retract the excess waste tape 18, so that multiple waste discharge parts 51 can be arranged in an overlapping manner (see Figure 7 ).

[0040] Preferably, the waste discharging tape fixed-length unidirectional conveying assembly 19 includes a fixed-length driving roller 191 and a fixed-length supporting roller 20. The roller surfaces of the fixed-length driving roller 191 and the fixed-length supporting roller 20 are in close contact. An active roller gear is provided at one end of the fixed-length driving roller 191, and a passive roller gear is provided at the same end of the fixed-length supporting roller 20. The active roller gear meshes with the passive roller gear.

[0041] Preferably, the waste discharging tape collecting assembly 22 is a constant-tension pulling collecting assembly.

[0042] In this embodiment, the constant-tension returning feeding assembly and the constant-tension pulling collecting assembly can adopt a magnetic powder motor with a speed-regulating tension control expanding roller assembly or a sliding motor with a speed-regulating tension control expanding roller assembly. When the force of the waste discharging tape 18 is too large, the magnetic powder tension motor can automatically slip according to a preset force value, so as not to break the waste discharging tape 18. In the present invention, the so-called constant tension means that after the tension is adjusted, the tension of the device remains basically unchanged during operation.

[0043] Please refer to Figure 5 and Figure 6 , Figure 5 and Figure 6 Disclosed is a second embodiment of a waste discharging device of a die-cutting machine. Compared with the first embodiment, the overall structure is the same, but the driving modes of each shaft are different. In the second embodiment, each shaft is driven by a corresponding motor. Specifically, the reverse power of the waste discharging tape feeding assembly 14 is provided by a second servo motor 141, the power of the waste discharging tape fixed-length unidirectional conveying assembly 19 is provided by a third servo motor 192, and the power of the waste discharging tape collecting assembly 22 is provided by a fourth servo motor 221. The first servo motor 9, the second servo motor 141, the third servo motor 192 and the fourth servo motor 221 are controlled by a control circuit (not shown).

[0044] In this embodiment, the torque relationships of various forces are as follows: the reverse power of the waste discharging tape feeding assembly 14 is less than the pressing traction force between the protrusion 121 and the to-be-die-cut material roller 8, the elastic force of the elastic tension roller 17 is less than the reverse power of the waste discharging tape feeding assembly 14, the reverse power of the waste discharging tape feeding assembly 14 is less than the unidirectional force of the waste discharging tape fixed-length unidirectional conveying assembly 19, and the winding force of the waste discharging tape collecting assembly 22 is less than the elastic force of the elastic tension roller 17.

[0045] Refer to again Figure 2 and Figure 5 , the present invention also provides a die-cutting machine, which includes the above-mentioned waste discharging device. From Figure 2 and Figure 5It can be seen that the die cutting machine further includes a material unwinding reel 1, a cutting support roller 2, a circular die cutting knife roller 3, a first support roller 7, a second support roller 10 and a material winding reel 11; the material 5 to be die cut is unwound from the material unwinding reel 1, and when passing through the cutting support roller 2 driven by a motor 4, the circular die cutting knife roller 3 above the cutting support roller 2 cuts off a part of the waste material 5 to form a part 51 to be peeled off (waste discharged). After the die cut material passes through the first support roller 7, it passes through a waste discharging support roller 8 driven by a motor 9, and then passes through the second support roller 10 and is wound by the material winding reel 11.

[0046] In this embodiment, the waste material 5 can be an adhesive material.

[0047] In the above two embodiments, all components and mechanisms can be fixed on the frame plate 6.

[0048] Compared with the prior art, since the present invention changes the forward movement mode of the waste discharging tape in the prior art from the traditional mode of running synchronously with the material to be die cut to a step mode set in advance, and the step distance is less than or equal to the width of the protrusion of the waste discharging tape pressing roller, the parts to be discharged can be arranged one by one or in an overlapping manner, which can greatly improve the utilization rate of the waste discharging tape and save the cost of the waste discharging tape.

Claims

1. A waste discharging method for a die-cutting machine that can save adhesive tape, where the waste discharging lower pressing roller of the waste discharging device rotates in the opposite direction to the material supporting roller to be die-cut. It is characterized in that, The steps are as follows: S1. When the waste portion to be removed on the material to be die-cut reaches between the lower pressing roller of the waste removal tape and the material supporting roller of the material to be die-cut, the protrusion of the lower pressing roller of the waste removal tape presses down the adhesive side of the waste removal tape to stick the waste portion to be removed; S2. Under the combined action of the protrusion of the lower pressing roller of the waste removal tape and the material supporting roller of the material to be die-cut, the waste removal tape with the waste portion to be removed is conveyed to the waste removal tape fixed-length one-way conveying component located between the lower pressing roller of the waste removal tape and the waste removal tape winding component; S3. The waste removal tape fixed-length one-way conveying component conveys the waste removal tape in a one-way manner to the waste removal tape winding component for winding according to a preset length of the waste removal tape, which is less than the length of the waste removal tape conveyed in step S2; S4. The waste removal tape unwinding component of the waste removal device keeps the waste removal tape in a retracted state all the time. When the waste removal tape disengages from the protrusion of the lower pressing roller of the waste removal tape, if there is excess waste removal tape between the lower pressing roller of the waste removal tape and the waste removal tape fixed-length one-way conveying component, the waste removal tape unwinding component will retract the excess waste removal tape; S5. Repeat steps S1 - S4 until the material to be die-cut is completely wound.

2. The waste discharging method for a die-cutting machine capable of saving adhesive tape according to claim 1, characterized in that: The reverse power of the waste removal tape unwinding component is provided by the first servo motor and the lower pressing roller of the waste removal tape through the first synchronous belt component. The power of the waste removal tape fixed-length one-way conveying component is provided by the lower pressing roller of the waste removal tape through the second synchronous belt. The power of the waste removal tape winding component is provided by the waste removal tape fixed-length one-way conveying component through the third synchronous belt.

3. The waste discharging method for die-cutting machine capable of saving adhesive tape according to claim 2, wherein: The reverse power of the waste removal tape unwinding component is provided by the second servo motor. The power of the waste removal tape fixed-length one-way conveying component is provided by the third servo motor. The power of the waste removal tape winding component is provided by the fourth servo motor. The first servo motor, the second servo motor, the third servo motor and the fourth servo motor are controlled by a control circuit.

4. The waste discharging method for die-cutting machine capable of saving adhesive tape according to claim 1 or 2 or 3, characterized in that: An elastic tensioning roller for tensioning the waste removal tape is provided between the lower pressing roller of the waste removal tape and the waste removal tape fixed-length one-way conveying component.

5. The waste discharging method for a die cutting machine capable of saving adhesive tape according to claim 4, characterized in that: A supporting roller for adjusting the wrap angle of the waste removal tape is provided between the waste removal tape unwinding component and the lower pressing roller of the waste removal tape.

6. A waste discharging device of a die cutting machine, comprising a waste discharging tape unwinding assembly (14), a waste discharging tape lower pressing roller (12) and a waste discharging tape winding assembly (22), characterized in that: A waste removal tape fixed-length one-way conveying component (19) is provided between the lower pressing roller (12) of the waste removal tape and the waste removal tape winding component (22). The waste removal tape fixed-length one-way conveying component (19) conveys the waste removal tape in a one-way manner to the waste removal tape winding component (22) according to a preset length that is less than or equal to the width of the protrusion (121) of the lower pressing roller (12) of the waste removal tape. The waste removal tape winding component (22) winds the waste removal tape; the waste removal tape winding component (22) is a constant-tension pulling winding component.

7. The waste discharging device of the die-cutting machine according to claim 6, characterized in that: The waste removal tape unwinding component (14) is a constant-tension retracting unwinding component. When the waste removal tape disengages from the protrusion (121) of the lower pressing roller (12) of the waste removal tape, if there is excess waste removal tape between the lower pressing roller (12) of the waste removal tape and the waste removal tape fixed-length one-way conveying component (19), the waste removal tape unwinding component (14) will retract the excess waste removal tape.

8. The waste discharging device of the die-cutting machine according to claim 6 or 7, characterized in that: The waste discharge tape fixed-length unidirectional conveying assembly (19) includes a fixed-length driving roller (191) and a fixed-length supporting roller (20). The roller surfaces of the fixed-length driving roller (191) and the fixed-length supporting roller (20) are in close contact. One end of the fixed-length driving roller (191) is provided with a driving roller gear, and the same end of the fixed-length supporting roller (20) is provided with a driven roller gear. The driving roller gear meshes with the driven roller gear.

9. A die-cutting machine, characterized in that: A waste discharging device of a die cutting machine according to any one of claims 6-8.

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